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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tuscany.databinding.sdo;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.List;
import javax.xml.namespace.QName;
import org.apache.tuscany.core.wire.InvocationRuntimeException;
import org.apache.tuscany.sdo.util.SDOUtil;
import org.osoa.sca.ServiceRuntimeException;
import commonj.sdo.DataObject;
import commonj.sdo.Property;
import commonj.sdo.Type;
import commonj.sdo.helper.DataFactory;
import commonj.sdo.helper.TypeHelper;
import commonj.sdo.helper.XMLDocument;
import commonj.sdo.helper.XMLHelper;
import commonj.sdo.helper.XSDHelper;
/**
* Utility methods to convert between XML byte arrays, SDO DataObjects, and Java objects.
*
* Most of these methods rely on the schemas having been registered with XSDHelper.define
*/
public final class SDOXMLHelper {
private SDOXMLHelper() {
// utility class, never contructed
}
/**
* Deserialize an XML byte array into Java Objects
*
* @param xmlBytes
* the byte array containing the XML
* @param isWrapped
*
* @return the array of deserialized Java objects
* @deprecated TUSCANY-333 use the method that takes a ClassLoader
*/
public static Object[] toObjects(TypeHelper typeHelper, byte[] xmlBytes, boolean isWrapped) {
DataObject dataObject = toDataObject(typeHelper, xmlBytes);
return toObjects(dataObject, isWrapped);
}
/**
* Convert a typed DataObject to Java objects
*
* @param dataObject
* @param isWrapped
* @return the array of Objects from the DataObject
*/
public static Object[] toObjects(DataObject dataObject, boolean isWrapped) {
if (isWrapped) {
List ips = dataObject.getInstanceProperties();
Object[] os = new Object[ips.size()];
for (int i = 0; i < ips.size(); i++) {
os[i] = dataObject.get((Property) ips.get(i));
}
return os;
} else {
Object object = dataObject;
Type type = dataObject.getType();
if (type.isSequenced()) {
object = dataObject.getSequence().getValue(0);
}
return new Object[] { object };
}
}
/**
* Serializes objects to an XML byte array
*
* @param os
* @param typeNS
* @param typeName
* @return a byte array containing the XML
* @deprecated TUSCANY-333 use the method that takes a ClassLoader
*/
public static byte[] toXMLBytes(TypeHelper typeHelper, Object[] os, QName elementQName, boolean isWrapped) {
DataObject dataObject = toDataObject(typeHelper, os, elementQName, isWrapped);
return toXMLbytes(typeHelper, dataObject, elementQName);
}
/**
* Convert a DataObject to an XML byte array
*
* @param dataObject
* @param typeNS
* @param typeName
* @return a byte array containing the XML bytes
* @deprecated TUSCANY-333 use the method that takes a ClassLoader
*/
public static byte[] toXMLbytes(TypeHelper typeHelper, DataObject dataObject, QName elementQName) {
try {
ByteArrayOutputStream pos = new ByteArrayOutputStream();
XMLHelper xmlHelper = SDOUtil.createXMLHelper(typeHelper);
xmlHelper.save(dataObject, elementQName.getNamespaceURI(), elementQName.getLocalPart(), pos);
pos.close();
return pos.toByteArray();
} catch (IOException e) {
throw new ServiceRuntimeException(e);
}
}
/**
* Deserialize an XML byte array into a DataObject
*
* @param xmlBytes
* @return a DataObject
* @deprecated TUSCANY-333 use the method that takes a ClassLoader
*/
public static DataObject toDataObject(TypeHelper typeHelper, byte[] xmlBytes) {
try {
XMLHelper xmlHelper = SDOUtil.createXMLHelper(typeHelper);
XMLDocument document = xmlHelper.load(new ByteArrayInputStream(xmlBytes));
return document.getRootObject();
} catch (IOException e) {
throw new ServiceRuntimeException(e);
}
}
/**
* Convert objects to typed DataObject
*
* @param typeNS
* @param typeName
* @param os
* @return the DataObject
* @deprecated TUSCANY-333 use the method that takes a ClassLoader
*/
public static DataObject toDataObject(TypeHelper typeHelper, Object[] os, QName elementQName, boolean isWrapped) {
XSDHelper xsdHelper = SDOUtil.createXSDHelper(typeHelper);
Property property = xsdHelper.getGlobalProperty(elementQName.getNamespaceURI(), elementQName.getLocalPart(), true);
if (null == property) {
throw new InvocationRuntimeException("Type '" + elementQName.toString() + "' not found in registered SDO types.");
}
if (isWrapped) {
DataFactory dataFactory = SDOUtil.createDataFactory(typeHelper);
DataObject dataObject = dataFactory.create(property.getType());
List ips = dataObject.getInstanceProperties();
for (int i = 0; i < ips.size(); i++) {
dataObject.set(i, os[i]);
}
return dataObject;
} else {
Object value = os[0];
Type type = property.getType();
if (!type.isDataType()) {
return (DataObject) value;
} else {
return SDOUtil.createDataTypeWrapper(type, value);
}
}
}
// ---
public static DataObject toDataObject(ClassLoader classLoader, TypeHelper typeHelper, Object[] os, QName elementQName, boolean isWrapped) {
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
try {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(classLoader);
}
return toDataObject(typeHelper, os, elementQName, isWrapped);
} finally {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(tccl);
}
}
}
public static DataObject toDataObject(ClassLoader classLoader, TypeHelper typeHelper, byte[] xmlBytes) {
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
try {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(classLoader);
}
return toDataObject(typeHelper, xmlBytes);
} finally {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(tccl);
}
}
}
public static byte[] toXMLbytes(ClassLoader classLoader, TypeHelper typeHelper, DataObject dataObject, QName elementQName) {
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
try {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(classLoader);
}
return toXMLbytes(typeHelper, dataObject, elementQName);
} finally {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(tccl);
}
}
}
public static byte[] toXMLBytes(ClassLoader classLoader, TypeHelper typeHelper, Object[] os, QName elementQName, boolean isWrapped) {
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
try {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(classLoader);
}
return toXMLBytes(typeHelper, os, elementQName, isWrapped);
} finally {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(tccl);
}
}
}
public static Object[] toObjects(ClassLoader classLoader, TypeHelper typeHelper, byte[] xmlBytes, boolean isWrapped) {
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
try {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(classLoader);
}
return toObjects(typeHelper, xmlBytes, isWrapped);
} finally {
if (tccl != classLoader) {
Thread.currentThread().setContextClassLoader(tccl);
}
}
}
}
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